Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E53 (1999 - 2006)

X5 E53 (1999 - 2006)
The X5 SAV Forum

Reply
 
Thread Tools Display Modes
  #1  
Old 02-07-2011, 09:14 AM
Sweaty Sweaty is offline
Registered User
Location: texas
 
Join Date: Feb 2011
Posts: 1
Mein Auto: x5 4.4i
X5 4.4i N62 oil leak

Help !

I started to notice pools of clean engine oil below my car a few weeks ago and after reading a few posts began to suspect valve cover gaskets. Feeling round the edge there was oil but did not seem much, anyway I went ahead and replaced the driver side gasket. Next day more oil on the floor. It is really difficult to see where it is coming from but seems to be dripping from ejre the oil cooler lines go into the block, however that may not be the source just a natural low drip point. Anyone have a list of common leak points on this engine. I feel that it must be on the pressure side as there is more oil that I would expect from a seeping top end gasket.

Any words of wisdom (I know I should take it to BMW but it hurts me) appreciated.

Thanks

Brian
Reply With Quote
Advertisement
  #2  
Old 02-28-2011, 09:31 AM
Alfredo2001X5 Alfredo2001X5 is offline
Registered User
Location: Canada
 
Join Date: Dec 2010
Posts: 33
Mein Auto: 2001 BMW X5
I have the same problem. My mechanic had a scope camera. Found that there may be a crack in the engine block. He is going to put a tack of weld on it and clean it up. Let you know what comes of this.
Reply With Quote
  #3  
Old 02-28-2011, 10:20 AM
HPIA4v2 HPIA4v2 is offline
Officially Welcomed to the 'Fest
Location: washington
 
Join Date: Mar 2006
Posts: 2,131
Mein Auto: E60, E71, E92
Quote:
Originally Posted by Sweaty View Post
Help !

I started to notice pools of clean engine oil below my car a few weeks ago and after reading a few posts began to suspect valve cover gaskets. Feeling round the edge there was oil but did not seem much, anyway I went ahead and replaced the driver side gasket. Next day more oil on the floor. It is really difficult to see where it is coming from but seems to be dripping from ejre the oil cooler lines go into the block, however that may not be the source just a natural low drip point. Anyone have a list of common leak points on this engine. I feel that it must be on the pressure side as there is more oil that I would expect from a seeping top end gasket.

Any words of wisdom (I know I should take it to BMW but it hurts me) appreciated.

Thanks

Brian
the valve cover gaslet usually leaks very little oil, but the upper timing chain cover leaks more so check this, it's at the front of the engine block.
Did you check the oil filter housing as well.

If in doubt, I'll take it out the garage, presure wash the engine, maybe add dye to engine oil and see where the actually leaks coming from.
I hope you don;t have cranck-case oil separator problem, this one the leaks is at the firewall and drips onto transmission bell housing but happens to cars in very cold climate.

Good luck.
Reply With Quote
  #4  
Old 03-03-2011, 11:46 AM
northon northon is offline
Registered User
Location: Brasil
 
Join Date: Mar 2011
Posts: 5
Mein Auto: BMW 545i E60 N62
Hello,

i have a 545i n62 engine and i have the same problems that you have, there as oil leaking from valve cover, on the next days i will send the car to BMW to fix it, and, as far the mechanic telled to me, there a oil excessive pressure problem, but we dont have certain until the dismount of engine.

[]'s
Reply With Quote
  #5  
Old 04-03-2011, 07:58 AM
theouf theouf is offline
Registered User
Location: france
 
Join Date: Apr 2011
Posts: 1
Mein Auto: 735i
hello,

I've got an oil leak on a N62 engine .

Could you give me news about your leaks ? from where it was located, how to solve it ?

Thanks
Reply With Quote
  #6  
Old 06-24-2012, 05:46 AM
gregrsag gregrsag is offline
Registered User
Location: durban
 
Join Date: Jun 2012
Posts: 1
Mein Auto: x5 4.4 n62
DIY. Oil leak fix. I have a BMW x5 2005 4.4L v8 n62 motor. *I had an oil leak which appeared to be from the front left side of the motor. Turned out to be the rubber gasget seal fitted between the engine block and alternatour mounting bracket. Took me the better part of a day to replace. First i removed the alternator, then power steering *pump ( did not disconnect pipes, just moved forward out the way ), *then removed both sideshafts as the front diff obscures the leaking housing bolts. I undid the left engine mounting top nut to allow the engine to be jacked up 20mm. Jacked up the left side of the motor, allowing me to unbolt the front diff, the diff does not need to be removed, just pushed to the side a bit in order to gain access to the alternatour mounting bracket. Now finally i was able to undo the alternator mounting bracket, replace the hardened seal. I then reassemble in reverse order. Good luck. Greg
* 2005 x5 4.4
2005 645 ci convertable

Last edited by gregrsag; 06-24-2012 at 05:54 AM.
Reply With Quote
  #7  
Old 06-28-2012, 07:49 PM
745lipastor 745lipastor is offline
Registered User
Location: Gainesville, FL
 
Join Date: Jun 2012
Posts: 1
Mein Auto: 2002 745Li
There are 3 oil check valves in each cylinder head. They can be seen to the left and right of the intake port. They look like threaded plugs but they have torx heads. Their construction is bizzare to say the least. They have a threaded steel check valve on the end that screws into the head and the section that has the torx head is aluminum with an O ring. The O ring can fail or, as in my case, the aluminum section can separate from the steel section and leak rapidly. Emptied my crankcase in seconds. Hope this helps someone
Reply With Quote
Reply

Bookmarks

Tags
n62 diy oil leak, n62 x5 oil leak


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E53 (1999 - 2006)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 01:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms